18 across
Mammoth
setter’s
crew
stripped
user
(7)
Mammoth setter’s crew stripped user (7)
hints
0
checks
0
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The definition is at the beginning of the clue.
How the clue works
Right, so Mammoth is the definition here, meaning huge. Then it's built in bits: "setter's" gives you IM (as in I'm), MEN is your crew, and "user" stripped down (chuck away the outer letters u and r) leaves you SE — stick those three chunks together and you're there.